During his racing career, Medley was purchased from Lord Grosvenor by Sir John Lade.

Afterwards, he was acquired by Tattersalls, who sold him for about $500 to the investment firm "Hart and McDonald" of Louisa, Virginia.

Medley was one of six Thoroughbred racing stallions purchased, and was intended to be resold upon their arrival in the United States, following the repeal of the Non-Importation Act of 1771.

One of the firm partners, Malcolm Hart, decided to keep Medley for himself, and stood the stallion at stud at his stable at Hanover Courthouse in Virginia.

While Medley only had eight seasons at stud, he made a profound impact on the early American Thoroughbred breed.